Inside a 3D firework LED lamp.

These lamps provide an interesting visual affect but are more of a novelty than a useful light source. This one has a very interesting construction beyond the effect itself.
If you enjoy these videos you can help support the channel with a dollar for coffee, cookies and random gadgets for disassembly at:-
http://www.bigclive.com/coffee.htm
This also keeps the channel independent of YouTube's advertising algorithms allowing it to be a bit more dangerous and naughty.